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Ionic-Liquid-Grafted Rigid Poly(p-Phenylene) Microspheres Efficient Heterogeneous Media for Metal Scavenging and Catalysis  
Ionic-Liquid-Grafted Rigid Poly(p-Phenylene) Microspheres Efficient Heterogeneous Media for Metal Scavenging and Catalysis
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关键词: ionic  liquids  metal  scavenging  microspheres  nanoparticles  
资料大小: 461k
所属学科: 高分子化学
来源: 来源网络
简介:
Novel guanidinium ionicliquid-grafted rigid poly(p-phenylene)(PPPIL) microspheres have been developed for metal scavenging and catalysis. The noble-metal nanoparticlessupported on the microspheres surfacecan be used as efficient heterogeneouscatalysts. The combination of nanoparticles and ionic liquid fragments on themicrosphere surfaces enhance the activity and durability of the catalyst. The PPPIL·Pd0catalyst has been testedin the Suzuki cross-coupling reaction,and exhibits much higher catalytic activity than Pd catalysts supported onporous polymer matrices. The PPPIL·Pd0catalyst can be recycled atleast for nine runs without any significant loss of activity. The present approach may, therefore, have potentialapplications in transition-metal-nanocatalyzed reactions.
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上传时间: 2015-9-22 18:58:35
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